Yes... see the vertical bars between the top of the heat sink and the red bar along the top... those are the "teeth". The teeth and taller heat sink do not make it better...it's purely a aesthetic thing aside from the fact that the taller ones hit many CPU heatsinks.
http://benchmarkreviews.com/index.php?option=com_content&task=view&id=773&Itemid=67&limit=1&limitstart=1
At more than 2" tall in certain areas the Corsair Vengeance could pose a problem for users like me who use large coolers such as the Scythe Mugen 2. I was able to use the Corsair Vengeance only after I mounted the fan on my cooler on the backside. Size is definitely a concern with heat spreaders of this size and therefore I encourage users to check that they will have enough space under their heatsinks before purchasing the Corsair Vengeance kit.
http://benchmarkreviews.com/index.php?option=com_content&task=view&id=773&Itemid=67&limit=1&limitstart=6
The problem I have with the Corsair Vengeance is the same I have with many kits of RAM on the market. Companies insist on putting large coolers on their RAM and it limits the choice in CPU heatsinks that can be used within users system. DDR3 does not require these elaborate coolers with its lower voltages which translate to lower temperatures then RAM saw during the DDR, and DDR2 era. Corsair is correcting this with low profile versions of its Vengeance line but ultimately I would like to see the average size of coolers drop instead of having to look for specific low profile versions of a memory line.
Pay attention to that last sentence in the 5 year old article. The started making both high and low profile versions with the same RAM modules back in 2011.
As luck would have it, and the lower profile being more highly desired, the lower profile ones are getting harder to find and may not be available with specs and timings matching the taller ones left on the market.
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